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3 May 2017, 01:39 (Ref:3730659) | #26 | |||
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3 May 2017, 01:42 (Ref:3730660) | #27 | |
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3 May 2017, 02:03 (Ref:3730661) | #28 | |||
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After PI it seems critical to me to do some testing at Bathurst. The teams normally stand their wheels up much more at Bathurst to make life easier for the tyres but to have a better understanding of limits will be important. Good move to do the test - neither easy nor cheap at Bathurst with all the gates to close etc but as Dunlop and the teams work through the issues, seems logical and needed to do this test. |
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3 May 2017, 04:23 (Ref:3730666) | #29 | |||
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Would consider getting a tyre to work at PI to be more than a great start on a Bathurst tyre. Can the tyre company get access to test at Bathurst anyway? Doesnt seem to be another event running already before the B1000 they can just add a day to, like the BMW crowd did.. It requires government gazetting doesnt it, for a separate event. And approval from state & local government. And filling the support crew roster for officials & medical. Or are we going to see this on Wednesday of Bathurst week Why is it that Michelin or Pirelli can just pop up with their world GT tyre & just br on it, with no failures of note? |
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Happy David Thexton Day, 21st March 2003 “I am not uncertain” - Dollar Bill Stern, Billions “Fear stimulates my imagination” - Don Draper, Mad Men “Everybody Lies” - Dr Gregory House, House “Trust But Verify” - Commissioner Frank Reagan, Blue Bloods |
3 May 2017, 04:37 (Ref:3730668) | #30 | |||
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To answer your question though would need a complex answer as tyres ain't simple. For example, GT tyres are wider, may not run anything like the same camber, are set up on the cars to get longer life (to keep pit stops short from a strategy standpoint) so less stress on the tyre, the cars are lighter and operate very differently in terms of roll stiffness, downforce etc. Plus on top of all that the tyre suppliers to GT3 have hundreds of cars running in various series and heaps of tracks all round the world so lots and lots of data to work with. Dunlops for Supercar need to operate across a range of temperatures and a wide range of tracks and with the new construction the data is being collected from 28 or so cars. The testing of the tyres was reduced somewhat last year (in regards to PI) and so the development is still ongoing, made more intriguing by the teams ramping up the stress on the tyres this year with much higher camber angles. Doing the test makes sense but it won't be easy as I mentioned as there'll be quite a few hoops to jump through. |
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“We’re far from having too much horsepower…[m]y definition of too much horsepower is when all four wheels are spinning in every gear.” ― Mark Donohue |
3 May 2017, 05:14 (Ref:3730669) | #31 | |||
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Although it didn't always work out for some teams. |
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"Your biggest auto race may one day become a Camaro playground", Chris Economaki, Bathurst 1979 |
3 May 2017, 05:19 (Ref:3730670) | #32 | |||
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The article seems pretty non-committal on anything, dates included. Weird how it quotes Warburton but he hasnt mentioned any sort of tyre day at Bathurst. Wonder if this test will be open to the public...? |
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3 May 2017, 07:41 (Ref:3730700) | #33 | |
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Is part of the reason for the tyre failures not partly caused by the need these days of chasing a tyre that wears out quicker in races?
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3 May 2017, 08:33 (Ref:3730713) | #34 | |
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3 May 2017, 08:52 (Ref:3730719) | #35 | ||
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Happy David Thexton Day, 21st March 2003 “I am not uncertain” - Dollar Bill Stern, Billions “Fear stimulates my imagination” - Don Draper, Mad Men “Everybody Lies” - Dr Gregory House, House “Trust But Verify” - Commissioner Frank Reagan, Blue Bloods |
3 May 2017, 09:40 (Ref:3730725) | #36 | ||
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"Your biggest auto race may one day become a Camaro playground", Chris Economaki, Bathurst 1979 |
4 May 2017, 01:22 (Ref:3730880) | #37 | ||
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Happy David Thexton Day, 21st March 2003 “I am not uncertain” - Dollar Bill Stern, Billions “Fear stimulates my imagination” - Don Draper, Mad Men “Everybody Lies” - Dr Gregory House, House “Trust But Verify” - Commissioner Frank Reagan, Blue Bloods |
4 May 2017, 01:28 (Ref:3730881) | #38 | ||
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Lowndes: No need for Bathurst tyre change |
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4 May 2017, 04:27 (Ref:3730894) | #39 | |||
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You feel you need to make a post calling that out, when your post is not on topic either. Seems logical to me! My post was a comment based on the link in the prior post. If that's not on topic, I don't know what is. |
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4 May 2017, 04:44 (Ref:3730897) | #40 | ||
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Might be interesting to see how the "softs" go on the generally rough Barbagallo circuit.
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4 May 2017, 05:10 (Ref:3730901) | #41 | ||
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4 May 2017, 08:03 (Ref:3730928) | #42 | ||
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4 May 2017, 10:58 (Ref:3730958) | #43 | |
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yes. quite a few
Looking forward to hearing back from Dunlop, But i suspect the result will be regulation on camber or increased tyre pressures. Larkos summary seemed to explaing what was going on why the new tyre was different and camber changes happened |
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5 May 2017, 02:28 (Ref:3731110) | #44 | ||
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Good work, let the moderators moderate, and you stick to what it is you do...
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5 May 2017, 03:18 (Ref:3731115) | #45 | |
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5 May 2017, 03:58 (Ref:3731117) | #46 | ||
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And people wonder why threats get made...
So, Barbagallo as a highly abrasive circuit, but relatively low speed, is tyre wear anywhere near that at the high speed but relatively normal abrasiveness of PI? |
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5 May 2017, 14:43 (Ref:3731244) | #47 | |||
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What disappoints me is that I remember reading before Clipsal that Dunlop were recommending reducing the amount of negative camber, but if anything it seems the teams pushed the other way. Then the majority of fans seem to want Dunlop's head on the block? If your engine builder said we recommend you don't go over 7500rpm, but you say nah, we'll push it to 8000rpm, do you blame the engine builder if it goes pop? |
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5 May 2017, 23:39 (Ref:3731365) | #48 | ||
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Anyway, I am still looking to Dunlop for my road car tyres. They are the only ones who offer a 91Y spec that is 2kg lighter per tyre than the common 94W spec (have to import it from Europe though). They perform near the top of all the tyre tests, on par or better than the Michelins, Pirellis and Continentals, and best in the wet. I'm considering these, even though stung by sister tyre Goodyear before. Also, excellent in the tyre tests and indeed excellent when new (as tested by the tyre tests), but seems to have lost grip as it has worn and worn fairly quick for a road tyre. |
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8 May 2017, 01:22 (Ref:3732093) | #49 | ||
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Power down tractions issues from the pilot, maybe?
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Tranquillity - What happens inside Shane's race car. Chaos - What happens outside Jamie's race car. |
10 May 2017, 06:54 (Ref:3732591) | #50 | |||
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AusGT Allow Tyre Warmers
But read the justification... Quote:
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Happy David Thexton Day, 21st March 2003 “I am not uncertain” - Dollar Bill Stern, Billions “Fear stimulates my imagination” - Don Draper, Mad Men “Everybody Lies” - Dr Gregory House, House “Trust But Verify” - Commissioner Frank Reagan, Blue Bloods |
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